Hamer, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.6 °F (low) to 73.8 °F (high). Annual precipitation averages 48.6 Inches. Hamer is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 33.1 °F | 54.9 °F | 3.56 in. |
| February | 35.1 °F | 58.3 °F | 3.33 in. |
| March | 41.4 °F | 65.9 °F | 3.47 in. |
| April | 49.9 °F | 74.8 °F | 3.52 in. |
| May | 59.0 °F | 81.7 °F | 3.8 in. |
| June | 67.6 °F | 87.9 °F | 4.73 in. |
| July | 71.0 °F | 90.8 °F | 5.05 in. |
| August | 69.6 °F | 89.0 °F | 5.49 in. |
| September | 63.8 °F | 83.8 °F | 5.25 in. |
| October | 51.7 °F | 75.1 °F | 3.63 in. |
| November | 41.1 °F | 65.4 °F | 3.2 in. |
| December | 35.9 °F | 57.7 °F | 3.59 in. |
| Annual | 51.6 °F | 73.8 °F | 48.62 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |